Oil passage structure for power transmission device

An oil passage structure for a power transmission device, the oil passage structure comprising:

• a case provided to accommodate the power transmission device;
• a baffle plate attached to an inner wall of the case;
• an oil pump;
• and
• a supply oil passage through which oil is pumped from the oil pump to an oil supply destination via the baffle plate, wherein:
• the baffle plate includes
• a plate body, and
• an auxiliary member having a plate shape, the auxiliary member being superposed on and integrated with the plate body;
• the baffle plate has a plate oil passage, a supply port, and a discharge port, the plate oil passage being an oil passage that constitutes a portion of the supply oil passage and passes through an inside of the baffle plate, the supply port being configured to allow the oil discharged from the oil pump to flow into the plate oil passage through the supply port, and the discharge port being configured to allow the oil supplied to the oil supply destination, to be discharged from the plate oil passage through the discharge port;
• and
• the plate oil passage is defined by a recess provided in at least one of a surface of the plate body and a surface of the auxiliary member which face to each other such that the auxiliary member is interposed on the plate body.